Attaching means for steel laths



March 20, 1928.

G. F. PAWLING ATTAGHING MEANS FOR STEEL LATHS Filed Mar'oh 5. 1925 Patented Mar. 20, 1928.

UNITED STATES PATENT OFFICE.

ATTACHING MEANS FOR STEEL LATES.

Application filed March. 5, 1925. Serial No. 13,355.

This invention, generally stated, relates to building construction and has more especial relation to a construction as shown and described in my co-pending application for patent Serial No. 715,281, filed May 23, 1924, and issued as Patent No. 1,614,570 on January 18th, 1927.

Practice of the above identified invention discloses, While the same is ellicient and practical, that according to the present invention I am enabled to complete threefourths of the work at the place where the bar or skeletonized joist is manufactured thus reducing manufacturing, shipping and erecting costs, providing a rigid and fixed fastening of steel lath with respect to joist and also providing joist at tie job with properly positioned and spaced pins, pegs or studs, thus tending to expedite erection and permit unskilled mechanics to be employed.

The invention consists of the novel construction hereinafter described and finally claimed.

The nature, characteristic features and scope of the invention will be more fully understood from the following description taken in connection with the accompanying drawings forming part hereof, and in which:

Fig. 1, is a view lin longitudinal section illustrating a floor or like construction enibodying features of the invention.

Fig. 2, is a top or plan view thereof With parts broken away for the sake of clearer illustration.

Fig. 3, is a fragmentary view in cross-sec tion taken upon the line 3*?) of Fig. 1.

Fig. 4, is a view of one of the pins dctached from a joist.

Fig. 5, is a section on the line 5-5 of Fig. 4.

Fig. 6, is a top or plan View of a split waher as used in conjunction with the pin; an

Fig. 7, is a view of the washer in crosssection.

For the purpose of illustrating my invention I have shown in the accompanying drawings one form thereof which is at present preferred by me, since the same has been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalitics of which m invention consists can be variously arrangedyand organized and that my invention is not limited to the precise arrangement and organization of the instrumcntalities as herein shown and described.

Referring to the drawings in detail, 10 designates spaced supporting members, as I- beams, spanned by a pluralit of bar or skeletonized joist, to sustain a oor and ceiling structure. The bar-joist, as they are termed in the trade, constitute a so-called Pratt truss elfect and each joistis made up of a T-shaped top chord 11, a bottom chord 12, vertical struts 13 and diagonal struts 14. At the time of manufacture of a bar-joist there is Welded upon the upper Hat surface of the top chord a plurality of properly spaced metal pins, pegs or studs which project upwardly from said chord. Fig. 4, best shows such a pin detached. Each pin, peg, or stud is of solid cross-section and integral structure being in` practice made by dropforgin The base 15 is disc-like and has a flange annular portion 16, an annular recessed part 17 and terminates in a vertical pointed stud, peg or pin 18. Since each barjoist has welded thereto properly spaced pins when erection is commenced it is merely necessary for an ordinary or unskilled workman to take sheets of metal lath and force the same down toward the bar joist, thus causing the` lath to be punctured by said pins as is readily apparent. The lath finds a resting place upon the pin flanges 16 below the annular recesses 17. Split washers, best seen in Figs. 6 and 7, are now forced down over the pms and are accommodated by the annular recesses 17. The Washers are designated 19 and the split part 20. The washer is not flat but is of inverted dish-shape as at 21 so that the lower, annular rim thereof may find a good bearing surface upon the metal lath and maintain the latter firml in place. A concrete fill 23 is employe as usual.

It will now be apparent that I have devised a novel and useful construction which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description and while I have in the present instance shown and described the preferred embodiment thereof which has been found in practice to give satisfactor and reliable results, it is to be understoodthat the same is susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages.

What I claim is:

1. In combination a structure to be spanned, a plurality of spaced bar-joist spanning said structure, each joist having a top chord of integral T-shaped cross-section with a flat top surface, said Bat surface having formed integral with and projected vertically thererom at all times a series of pointed rigid pegs, lathing applied over said pegs to puncture the latliingand permit same to rest upon the joist, and means to interlock said lathing with respect to said P In combination a structure to be spanned, a plurality of spaced bar-joist spans ning said structure, each joist having a top chord of T-shaped cross-section and having formed integral with and rojected up- Wardly from said chord a series of printed pegs each having an annular recess, lathing applied over said pegs to puncture the lathing and permit same to rest upon the joist, and means including split washers for engaging the recesses of the pegs to interlock said lathing with respect to said pegs.

3. In combination a structure to be n spanned, a plurality of spaced bar-joist spanning said structure, eifeh joist having a lat top welded to which and projected upwardly from its said fiat top is a series of pointed pegs, lathing applied over said pegs to puncture the latliing and permit same to rest upon the joist, and means to interlock said lathing with respect to said pegs.

4. In building construction, a structure to he spanned, skeletonized joist spanning said structure, each joist having a top chord of T-shaped cross-section and having a flat top, a series of pegs having pointed tops formed integral with and projected upwardly from said chord and metal lath applied over said pegs to puncture the lath and permit saine to rest upon the flat top of said chord and a fill of concrete on the lath surrounding said upstanding pegs.

5. In building construction the combination of spaced supports, pegs projecting upwardly therefrom, metal lath spanning the supports and penetrated by said pegs, and means locking the lath to the pegs While the latter are in upright position.

6. In building construction the combination of a plurality of spaced joists, a series of spaced pegs projecting upwardly therefrom, metal lath spanning the joists and penetrated by said pegs, means locking the lath to the pegs While the latter are in ulpi'iglit position, and a fill 0f concrete on t e lath.

7. In building construction the combina tion of spaced supports, pointed pegs projecting upwardly therefrom, a recess near the bottoni of each peg, metal lath spanning the supports and penetrated by said pegs, and split washers engaging the recesses to lock the lath to the pegs.

8. In building construction the combination of spaced supports, pegs projecting up- Wardly therefrom, metal lath spanning the supports and penetrated by said pegs, and a fill of plastic material on said lath surrounding said upstanding pegs.

9. In building construction tlie combination of a plurality of spaced joists, a series of spaced pegs projecting upwardly therefrom, metal lath spanning the joists and penetrated by said pegs, and a fill of plastic material on said lath surrounding said upstanding pegs.

In witness whereof, I have hereunto signed my name.

GEORGE F. PAWLING.

parting from the spirit or scope of the invention or sacrificing any of its advantages.

What I claim is:

1. In combination a structure to be spanned, a plurality of s aced bar-joist spanning said structure, eac joist having a top chord of integral T-shaped cross-section with a fiat top surface, said flat surface having formed integral with and projected vertically therefrom at all times a series of pointed rigid pegs, lathing applied over said pegs to puncture the lathing and permit same to rest upon the joist, and means to interlock said lathing with respect to said P In combination a structure to be spanned, a plurality of spaced bar-joist spanning said structure, each joist having a top chord of T-shaped cross-section and having formed integral with and projected upwardly from said chord a series of rinted pegs each havin" an annular recess, athing applied over said pegs to puncture the lathing and permit same to rest upon the joist, and means including split washers for engaging the recesses of the pegs to interlock said lathing with respect to said pegs.

3. In combination a structure to be spanned, a plurality of spaced bar-joist spanning said structure, e'eh joist having a fiat top welded to which and projected upwardly from its said flat top is a series of pointed pegs, lathing applied over "said pegs to puncture the lathing and permit same to rest upon the joist, and means to interlock said lathing with respect to said pegs.

4. In building construction, a structure to be spanned, skeletonized joist spanning said structure, each joist having a top chord of T-shaped cross-section and having a flat top, a series of pegs having pointed tops formed integral with and projected upwardly from said chord and metal lath applied over said pegs to puncture the lath and permit same to rest upon the flat top of said chord and a fill of concrete on the lath surrounding said upstanding pegs.

5. In building construction the combination of spaced supports, pegs projecting upwardly therefrom, metal lath spanning the supports and penetrated by said pegs, and means locking the lath to the pegs while the latter are in upright position.

6. In building construction the combination of a plurality of spaced joists, a series of spaced pegs rojecting upwardly therefrom, metal latii spanning the joists and penetrated by said pegs, means locking the lath to the pegs while the latter are in upright position, and a fill of concrete on t e lath.

7. In building construction the combination of spaced supports, pointed pegs projecting upwardly therefrom, a recess near the bottoni of each peg, metal lath spanning the supports and penetrated by said pegs, and split washers engaging the recesses to lock the lath to the pegs.

8. In building construction the combination of spaced supports, pegs projecting up- Wardly therefrom, metal lath spanning the supports and penetrated by said pegs, and a fill of plastic material on said lath surrounding said upstanding pegs.

9. In building construction the combination of a plurality of spaced joists, a series of spaced pegs projecting upwardly therefrom, metal lath spanning the joists and penetrated by said pegs, and a iill of plastic material on said lath surrounding said upstanding pegs.

In witness whereof, I have hereunto signed my name.

GEORGE F. PAWLING.

CERTIFICATE Ol' CORRECTION.-

Patent No. l, 662, 896.

Granted Merch 20, 1928, to

GEORGE l". PAWLING.`

lt is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2. line 21, claim 2, for thc word "printed" read "pointel"; same page, line 42, claim 4, lfter Athe word "from" insert the words "the uid flat top of";,and that the said Letters Patent should be rend with tllccc corrections therein that the same may conform to the record of the cnc in the Patent Office.

Signed and scaled this 10th day of April, A. D. 1928.

M. I. Moore, Acting Commissioner of Patents.

CERTIFICATE 0F GORRECTION.

Potent No. 1,662,896. Granted Horch 20, 19287, to

GEORGE F. PAWYLING.`

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correctjon as follows: Page 2. line 2l, claim 2. for the word "printed" read "pointed"; same page, line 42, claim 4, lfter 4the ivord "from" insert the words "the uid flat top of"; and that the snid Letters Patent should he read with ticle corrections therein tltli the me may conform to the record of the cale in the Patent Office.

Signed and sealed this 10th day of April, A. D. 1928.

M. J. Moore, (501) Acting Commissioner vof Patents. 

